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Laboratories Inc. <br /> Environmental Testing Laboratory Since 1949 <br /> Arcadis-SLO Reported: 03/12/2019 12:56 <br /> 735 Tank Farm Rd,Suite 150 Project: Forward Landfill <br /> San Luis Obispo,CA 93401 Project Number: SM010309.0000 <br /> Project Manager: Heather Tegley <br /> Volatile Organic Analysis (EPA Method 826013) <br /> Quality Control Report - Precision & Accuracy <br /> Control Limits <br /> Source Source Spike Percent Percent Lab <br /> Constituent Type Sample ID Result Result Added Units RPD Recovery RPD Recovery Qualls <br /> QC Batch ID: 8039806 Used client sample: N <br /> Benzene MS 1906520-17 ND 28.210 25.000 ug/L 113 70-130 <br /> MSD 1906520-17 ND 29.640 25.000 ug/L 4.9 119 20 70-130 <br /> Bromodichloromethane MS 1906520-17 ND 26.290 25.000 ug/L 105 70-130 <br /> MSD 1906520-17 ND 27.240 25.000 ug/L 3.5 109 20 70-130 <br /> Chlorobenzene MS 1906520-17 ND 25.340 25.000 ug/L 101 70-130 <br /> MSD 1906520-17 ND 26.060 25.000 ug/L 2.8 104 20 70-130 <br /> Chloroethane MS 1906520-17 ND 27.400 25.000 ug/L 110 70-130 <br /> MSD 1906520-17 ND 28.810 25.000 ug/L 5.0 115 20 70-130 <br /> 1,4-Dichlorobenzene MS 1906520-17 ND 23.210 25.000 ug/L 92.8 70-130 <br /> MSD 1906520-17 ND 22.790 25.000 ug/L 1.8 91.2 20 70-130 <br /> 1,1-Dichloroethane MS 1906520-17 ND 25.950 25.000 ug/L 104 70-130 <br /> MSD 1906520-17 ND 27.650 25.000 ug/L 6.3 111 20 70-130 <br /> 1,1-Dichloroethene MS 1906520-17 ND 24.200 25.000 ug/L 96.8 70-130 <br /> MSD 1906520-17 ND 25.450 25.000 ug/L 5.0 102 20 70-130 <br /> Toluene MS 1906520-17 ND 27.190 25.000 ug/L 109 70-130 <br /> MSD 1906520-17 ND 27.580 25.000 ug/L 1.4 110 20 70-130 <br /> Trichloroethene MS 1906520-17 ND 25.360 25.000 ug/L 101 70-130 <br /> MSD 1906520-17 ND 26.160 25.000 ug/L 3.1 105 20 70-130 <br /> 1,2-Dichloroethane-d4(Surrogate) MS 1906520-17 ND 10.660 10.000 ug/L 107 75-125 <br /> MSD 1906520-17 ND 11.040 10.000 ug/L 3.5 110 75-125 <br /> Toluene-d8(Surrogate) MS 1906520-17 ND 10.580 10.000 ug/L 106 80-120 <br /> MSD 1906520-17 ND 10.490 10.000 ug/L 0.9 105 80-120 <br /> 4-Bromofluorobenzene(Surrogate) MS 1906520-17 ND 10.070 10.000 ug/L 101 80-120 <br /> MSD 1906520-17 ND 9.8800 10.000 ug/L 1.9 98.8 80-120 <br /> The results in this report apply to the samples analyzed in accordance with the chain ojcusiody document.This analytical report must be reproduced in its entirety. <br /> All results listed in this report are for the exclusive use of the submitting party. BC Laboratories,Inc.assumes no responsibility for report alteration,separation,detachment or third party interpretation. <br /> Report ID: 1000861040 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.bclabs.com Page 34 of 35 <br />